1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
|
package main
// This file tests the compiler by running Go files in testdata/*.go and
// comparing their output with the expected output in testdata/*.txt.
import (
"bufio"
"bytes"
"io/ioutil"
"os"
"os/exec"
"path/filepath"
"runtime"
"sort"
"testing"
"github.com/tinygo-org/tinygo/loader"
)
const TESTDATA = "testdata"
func TestCompiler(t *testing.T) {
matches, err := filepath.Glob(filepath.Join(TESTDATA, "*.go"))
if err != nil {
t.Fatal("could not read test files:", err)
}
dirMatches, err := filepath.Glob(filepath.Join(TESTDATA, "*", "main.go"))
if err != nil {
t.Fatal("could not read test packages:", err)
}
if len(matches) == 0 || len(dirMatches) == 0 {
t.Fatal("no test files found")
}
for _, m := range dirMatches {
matches = append(matches, filepath.Dir(m)+string(filepath.Separator))
}
sort.Strings(matches)
// Create a temporary directory for test output files.
tmpdir, err := ioutil.TempDir("", "tinygo-test")
if err != nil {
t.Fatal("could not create temporary directory:", err)
}
defer os.RemoveAll(tmpdir)
if runtime.GOOS != "windows" {
t.Log("running tests on host...")
for _, path := range matches {
t.Run(path, func(t *testing.T) {
runTest(path, tmpdir, "", t)
})
}
}
if testing.Short() {
return
}
t.Log("running tests for emulated cortex-m3...")
for _, path := range matches {
t.Run(path, func(t *testing.T) {
runTest(path, tmpdir, "qemu", t)
})
}
if runtime.GOOS == "linux" {
t.Log("running tests for linux/arm...")
for _, path := range matches {
if path == filepath.Join("testdata", "cgo")+string(filepath.Separator) {
continue // TODO: improve CGo
}
t.Run(path, func(t *testing.T) {
runTest(path, tmpdir, "arm--linux-gnueabihf", t)
})
}
t.Log("running tests for linux/arm64...")
for _, path := range matches {
if path == filepath.Join("testdata", "cgo")+string(filepath.Separator) {
continue // TODO: improve CGo
}
t.Run(path, func(t *testing.T) {
runTest(path, tmpdir, "aarch64--linux-gnu", t)
})
}
t.Log("running tests for WebAssembly...")
for _, path := range matches {
if path == filepath.Join("testdata", "gc.go") {
continue // known to fail
}
t.Run(path, func(t *testing.T) {
runTest(path, tmpdir, "wasm", t)
})
}
}
}
func runTest(path, tmpdir string, target string, t *testing.T) {
// Get the expected output for this test.
txtpath := path[:len(path)-3] + ".txt"
if path[len(path)-1] == os.PathSeparator {
txtpath = path + "out.txt"
}
f, err := os.Open(txtpath)
if err != nil {
t.Fatal("could not open expected output file:", err)
}
expected, err := ioutil.ReadAll(f)
if err != nil {
t.Fatal("could not read expected output file:", err)
}
// Build the test binary.
config := &BuildConfig{
opt: "z",
printIR: false,
dumpSSA: false,
verifyIR: true,
debug: false,
printSizes: "",
wasmAbi: "js",
}
binary := filepath.Join(tmpdir, "test")
err = Build("./"+path, binary, target, config)
if err != nil {
if errLoader, ok := err.(loader.Errors); ok {
for _, err := range errLoader.Errs {
t.Log("failed to build:", err)
}
} else {
t.Log("failed to build:", err)
}
t.Fail()
return
}
// Run the test.
var cmd *exec.Cmd
if target == "" {
cmd = exec.Command(binary)
} else {
spec, err := LoadTarget(target)
if err != nil {
t.Fatal("failed to load target spec:", err)
}
if len(spec.Emulator) == 0 {
t.Fatal("no emulator available for target:", target)
}
args := append(spec.Emulator[1:], binary)
cmd = exec.Command(spec.Emulator[0], args...)
}
stdout := &bytes.Buffer{}
cmd.Stdout = stdout
if target != "" {
cmd.Stderr = os.Stderr
}
err = cmd.Run()
if _, ok := err.(*exec.ExitError); ok && target != "" {
err = nil // workaround for QEMU
}
// putchar() prints CRLF, convert it to LF.
actual := bytes.Replace(stdout.Bytes(), []byte{'\r', '\n'}, []byte{'\n'}, -1)
expected = bytes.Replace(expected, []byte{'\r', '\n'}, []byte{'\n'}, -1) // for Windows
// Check whether the command ran successfully.
fail := false
if err != nil {
t.Log("failed to run:", err)
fail = true
} else if !bytes.Equal(expected, actual) {
t.Log("output did not match")
fail = true
}
if fail {
r := bufio.NewReader(bytes.NewReader(actual))
for {
line, err := r.ReadString('\n')
if err != nil {
break
}
t.Log("stdout:", line[:len(line)-1])
}
t.Fail()
}
}
|
